Error when copying property which value is not a string(int)

[timotheeguerin]

Seems like the write text doesn't like when it is not a string.

Repro:

• Copy target dedicated of pool

ERROR TypeError: Error processing argument at index 0, conversion failure from 0
    at ClipboardService.writeText (clipboard.service.ts:11)
    at TextPropertyComponent.copyToClipBoard (text-property.component.ts:32)
    at Object.eval [as handleEvent] (TextPropertyComponent.html:7)
    at handleEvent (core.js:10258)
    at callWithDebugContext (core.js:11351)
    at Object.debugHandleEvent [as handleEvent] (core.js:11054)
    at dispatchEvent (core.js:7717)
    at eval (core.js:8161)
    at HTMLElement.eval (platform-browser.js:995)
    at ZoneDelegate.invokeTask (zone.js:421)